US20130296086A1 - Traction drive of an internal combustion engine and method for operating the same - Google Patents
Traction drive of an internal combustion engine and method for operating the same Download PDFInfo
- Publication number
- US20130296086A1 US20130296086A1 US13/980,896 US201113980896A US2013296086A1 US 20130296086 A1 US20130296086 A1 US 20130296086A1 US 201113980896 A US201113980896 A US 201113980896A US 2013296086 A1 US2013296086 A1 US 2013296086A1
- Authority
- US
- United States
- Prior art keywords
- crankshaft
- wheel
- drive
- compressor
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/003—Starting of engines by means of electric motors said electric motor being also used as a drive for auxiliaries, e.g. for driving transmission pumps or fuel pumps during engine stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/08—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing being of friction type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/06—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a stepped pulley
Definitions
- the invention concerns a traction drive of an internal combustion engine, comprising two parallel drive planes and:
- a generic double belt drive is disclosed in DE 10 2010 054 630 Al not published earlier.
- the electric machine proposed there is driven in the crankshaft rotation direction either as a driven generator or as a driving motor.
- the motor mode driving the crankshaft in its direction of rotation, has a starting mode for starting the internal combustion engine and a so-called boost mode in which the crankshaft is driven not only by the internal combustion engine but also by the electric motor in order to increase the torque.
- a further motor mode of the electric machine serves for so-called stationary air-conditioning, for cooling the vehicle driven by the combustion engine.
- the electric machine drives the air-conditioning compressor, which is adapted for compression operation in both directions of rotation, in the reverse direction of rotation while the internal combustion engine is stopped.
- the invention is based on the object of specifying an alternative embodiment of a traction drive of the type cited initially and a method for operating such a traction drive.
- a second compressor wheel is provided which can be connected rotationally with the compressor shaft and is arranged coaxially to the first compressor wheel in the second drive plane in order to drive the air-conditioning compressor in motor mode.
- stationary air-conditioning takes place not by reversing the direction of rotation of the air-conditioning compressor but by coupling in a further compressor wheel in the second drive plane which also serves to drive the crankshaft.
- the same drive concept can be provided for a coolant pump driven by the traction drive for cooling the internal combustion engine.
- the coolant pump like the air-conditioning compressor, can be driven by the electric machine when the combustion engine is stopped in order to provide the heat exchanger of the vehicle with preheated coolant (stationary heating).
- the individual operating modes are controlled/regulated by means of various status parameters, in particular of the internal combustion engine, the vehicle interior temperature and the switching state of the controllable couplings.
- a preferred traction means for the first drive plane is a poly-V-belt acting by force-fit and for the second drive plane a toothed belt acting by form-fit.
- a traction means according the invention can nonetheless also be a chain-chain drive or a belt-chain drive. Also further ancillary devices can be provided, where applicable also in further drive planes.
- FIGURE shows schematically a traction drive according to the invention of an internal combustion engine of a motor vehicle (not shown).
- the operational direction of rotation of the combustion engine corresponds to the direction marked on the crankshaft CR with a positive prefix.
- the traction drive is formed as a double belt drive with two parallel drive planes, wherein the first drive plane 1 is shown as a solid line and the second drive plane 2 as a dotted line.
- the traction drive comprises an electric machine M, which can be operated either as a generator or as a motor, with a machine shaft 3 , an air-conditioning compressor A/C with a compressor shaft 4 , and a coolant pump WP with a pump shaft 5 .
- crankshaft CR is connected rotationally with a first crankshaft wheel 6 arranged thereon and with a second crankshaft wheel 7 coaxial to the first.
- the machine shaft 3 is connected rotationally with a first machine wheel 8 arranged thereon and with a second machine wheel 9 coaxial to the first.
- the compressor shaft 4 is connected rotationally with a first compressor wheel 10 arranged thereon and with a second compressor wheel 11 coaxial to the first.
- the pump shaft 5 is connected rotationally with a first pump wheel 12 arranged thereon and with a second pump wheel 13 coaxial to the first.
- the first wheels 6 , 8 , 10 and 12 are arranged in the first drive plane 1 , and a first traction means 14 in the form of an endlessly circulating poly-V-belt loops around said wheels.
- the second wheels 7 , 9 , 11 and 13 are arranged in the second drive plane 2 , and a second traction means 15 in the form of an endlessly circulating toothed belt loops around said wheels.
- the pretensioning of the traction means 14 , 15 can be adjusted by means of tensioning devices not shown.
- the respective direction of rotation of the wheels with the associated shafts is configured as follows.
- a first coupling K 1 is arranged between the first crankshaft wheel 6 and the crankshaft CR and blocks an overrunning by the crankshaft CR in relation to the first crankshaft wheel 6 in the direction of rotation of the crankshaft CR.
- the coupling K 1 is a rotational coupling rigid in both directions.
- a controllable second coupling K 2 is arranged between the second crankshaft wheel 7 and the crankshaft CR and in closed state blocks an overrunning by the second crankshaft wheel 7 in relation to the crankshaft CR in the direction of rotation of the crankshaft CR, and in opened state decouples the second crankshaft wheel 7 from the crankshaft CR in both directions of rotation.
- the coupling K 2 is closed and the rotation of the driving electric machine M is then transmitted to the driven crankshaft CR.
- coupling K 2 is opened in order to be able to hold the second drive plane 2 at a standstill.
- stationary air-conditioning mode however, coupling K 2 is opened in order to be able to hold the crankshaft CR at a standstill.
- Coupling K 2 is an electrically controllable magnetic coupling which can be opened or closed when not powered, and the coupling intervention of which can act by force- or form-fit.
- a controllable overrun coupling can be provided which in opened state allows a relative twist in both directions of rotation.
- a third coupling K 3 is arranged between the first machine wheel 8 and the machine shaft 3 and is formed as an overrun coupling which allows an overrunning by the machine shaft 3 in relation to the first machine wheel 8 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation.
- Such a generator overrun device known in itself, prevents the transmission of crankshaft rotational vibrations to the electric machine M.
- a controllable fourth coupling K 4 is arranged between the second machine wheel 9 and the machine shaft 3 and in closed state blocks an overrunning by the machine shaft 3 in relation to the second machine wheel 9 in the direction of rotation of the crankshaft CR, and in opened state decouples the second machine wheel 9 from the machine shaft 3 in both directions of rotation.
- coupling K 4 is closed in order to transmit the rotation of the driving electric machine M to the crankshaft CR in starting and boost mode, and to the air-conditioning compressor A/C and the coolant pump WP in stationary air-conditioning mode.
- coupling K 4 (and also coupling K 2 ) is opened to be able to hold the second driving plane 2 at a standstill.
- the coupling K 4 is formed as a controllable overrun coupling which in opened state allows a relative twist in both directions of rotation. Alternatively this can also be an electrically controllable magnetic coupling.
- a fifth coupling K 5 is arranged between the first compressor wheel 10 and the compressor shaft 4 and is formed as an overrun coupling which allows an overrunning by the compressor shaft 4 in relation to the first compressor wheel 10 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation.
- the overrun function of the coupling K 5 prevents the first drive plane 1 , which is then at a standstill, from being driven via the compressor shaft 4 .
- a sixth coupling K 6 is arranged between the second compressor wheel 11 and the compressor shaft 4 and is also formed as an overrun coupling. This allows an overrunning by the compressor shaft 4 in relation to the second compressor wheel 11 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation. In normal operating mode, the overrun function of coupling K 6 prevents the second drive plane 2 , which is then at a standstill, from being driven via the compressor shaft 4 .
- the rotational connection between the two pump wheels 12 , 13 and the pump shaft 5 comprises a seventh overrun coupling K 7 and/or an eighth overrun coupling K 8 respectively, and is kinematically identical to the rotational coupling at the air-conditioning compressor A/C.
- the traction drive allows the following operating modes:
Abstract
Description
- The invention concerns a traction drive of an internal combustion engine, comprising two parallel drive planes and:
-
- a first crankshaft wheel which can be connected rotationally with a crankshaft of the internal combustion engine and is arranged in the first drive plane,
- a second crankshaft wheel which can be connected rotationally with the crankshaft and is arranged coaxially to the first crankshaft wheel in the second drive plane,
- an electric machine, which can be operated either as a generator or as a motor, with a machine shaft,
- a first machine wheel which can be connected rotationally with the machine shaft and is arranged in the first drive plane in order to be driven by the crankshaft when the electric machine is in a generator mode,
- a second machine wheel which can be connected rotationally with the machine shaft and is arranged coaxially to the first machine wheel in the second drive plane in order to drive the crankshaft when the electric machine is in a motor mode,
- an air-conditioning compressor with a compressor shaft,
- a first compressor wheel which can be connected rotationally with the compressor shaft and is arranged in the first drive plane in order to drive the air-conditioning compressor in the generator mode,
- an endlessly circulating first traction means which loops around the first wheels arranged in the first drive plane,
- and an endlessly circulating second traction means which loops around the second wheels arranged in the second drive plane.
- A generic double belt drive is disclosed in DE 10 2010 054 630 Al not published earlier. The electric machine proposed there is driven in the crankshaft rotation direction either as a driven generator or as a driving motor. The motor mode, driving the crankshaft in its direction of rotation, has a starting mode for starting the internal combustion engine and a so-called boost mode in which the crankshaft is driven not only by the internal combustion engine but also by the electric motor in order to increase the torque.
- A further motor mode of the electric machine serves for so-called stationary air-conditioning, for cooling the vehicle driven by the combustion engine. In the publication cited, the electric machine drives the air-conditioning compressor, which is adapted for compression operation in both directions of rotation, in the reverse direction of rotation while the internal combustion engine is stopped.
- The invention is based on the object of specifying an alternative embodiment of a traction drive of the type cited initially and a method for operating such a traction drive.
- The object is achieved by a device with the features and method with the features of the invention. Advantageous embodiments of the invention are described below and in the claims.
- Accordingly, a second compressor wheel is provided which can be connected rotationally with the compressor shaft and is arranged coaxially to the first compressor wheel in the second drive plane in order to drive the air-conditioning compressor in motor mode. In contrast to the prior art cited above, stationary air-conditioning takes place not by reversing the direction of rotation of the air-conditioning compressor but by coupling in a further compressor wheel in the second drive plane which also serves to drive the crankshaft.
- The same drive concept can be provided for a coolant pump driven by the traction drive for cooling the internal combustion engine. Thus the coolant pump, like the air-conditioning compressor, can be driven by the electric machine when the combustion engine is stopped in order to provide the heat exchanger of the vehicle with preheated coolant (stationary heating).
- For operation of the traction drive according to the invention, at least one of the following operating modes is proposed:
-
- a starting mode in which the electric machine operated as a motor drives the crankshaft until the internal combustion engine starts,
- a normal operating mode in which the electric machine operated as a generator is driven by the crankshaft of the running internal combustion engine,
- a boost mode in which the electric machine operated as a motor drives the crankshaft as support while the internal combustion engine is running,
- and when the internal combustion engine is stopped, a stationary air-conditioning mode in which the electric machine operated as a motor drives the air-conditioning compressor or where applicable the coolant pump.
- The individual operating modes are controlled/regulated by means of various status parameters, in particular of the internal combustion engine, the vehicle interior temperature and the switching state of the controllable couplings.
- A preferred traction means for the first drive plane is a poly-V-belt acting by force-fit and for the second drive plane a toothed belt acting by form-fit. A traction means according the invention can nonetheless also be a chain-chain drive or a belt-chain drive. Also further ancillary devices can be provided, where applicable also in further drive planes.
- Further features of the invention arise from the description below and the sole FIGURE which shows schematically a traction drive according to the invention of an internal combustion engine of a motor vehicle (not shown). The operational direction of rotation of the combustion engine corresponds to the direction marked on the crankshaft CR with a positive prefix.
- The traction drive is formed as a double belt drive with two parallel drive planes, wherein the
first drive plane 1 is shown as a solid line and thesecond drive plane 2 as a dotted line. - The traction drive comprises an electric machine M, which can be operated either as a generator or as a motor, with a
machine shaft 3, an air-conditioning compressor A/C with a compressor shaft 4, and a coolant pump WP with a pump shaft 5. - The crankshaft CR is connected rotationally with a first crankshaft wheel 6 arranged thereon and with a
second crankshaft wheel 7 coaxial to the first. - The
machine shaft 3 is connected rotationally with afirst machine wheel 8 arranged thereon and with asecond machine wheel 9 coaxial to the first. - The compressor shaft 4 is connected rotationally with a
first compressor wheel 10 arranged thereon and with asecond compressor wheel 11 coaxial to the first. - The pump shaft 5 is connected rotationally with a
first pump wheel 12 arranged thereon and with asecond pump wheel 13 coaxial to the first. - The
first wheels first drive plane 1, and a first traction means 14 in the form of an endlessly circulating poly-V-belt loops around said wheels. Thesecond wheels second drive plane 2, and a second traction means 15 in the form of an endlessly circulating toothed belt loops around said wheels. The pretensioning of the traction means 14, 15 can be adjusted by means of tensioning devices not shown. - The respective direction of rotation of the wheels with the associated shafts is configured as follows.
- A first coupling K1 is arranged between the first crankshaft wheel 6 and the crankshaft CR and blocks an overrunning by the crankshaft CR in relation to the first crankshaft wheel 6 in the direction of rotation of the crankshaft CR. Thus the rotation of the driven crankshaft CR is initiated in the
first drive plane 1 in normal operating mode. The coupling K1 is a rotational coupling rigid in both directions. - A controllable second coupling K2 is arranged between the
second crankshaft wheel 7 and the crankshaft CR and in closed state blocks an overrunning by thesecond crankshaft wheel 7 in relation to the crankshaft CR in the direction of rotation of the crankshaft CR, and in opened state decouples thesecond crankshaft wheel 7 from the crankshaft CR in both directions of rotation. In starting and boost modes, the coupling K2 is closed and the rotation of the driving electric machine M is then transmitted to the driven crankshaft CR. In normal operating mode, coupling K2 is opened in order to be able to hold thesecond drive plane 2 at a standstill. In stationary air-conditioning mode however, coupling K2 is opened in order to be able to hold the crankshaft CR at a standstill. Coupling K2 is an electrically controllable magnetic coupling which can be opened or closed when not powered, and the coupling intervention of which can act by force- or form-fit. Alternatively a controllable overrun coupling can be provided which in opened state allows a relative twist in both directions of rotation. - A third coupling K3 is arranged between the
first machine wheel 8 and themachine shaft 3 and is formed as an overrun coupling which allows an overrunning by themachine shaft 3 in relation to thefirst machine wheel 8 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation. Such a generator overrun device, known in itself, prevents the transmission of crankshaft rotational vibrations to the electric machine M. - A controllable fourth coupling K4 is arranged between the
second machine wheel 9 and themachine shaft 3 and in closed state blocks an overrunning by themachine shaft 3 in relation to thesecond machine wheel 9 in the direction of rotation of the crankshaft CR, and in opened state decouples thesecond machine wheel 9 from themachine shaft 3 in both directions of rotation. In starting, boost and stationary air-conditioning modes, coupling K4 is closed in order to transmit the rotation of the driving electric machine M to the crankshaft CR in starting and boost mode, and to the air-conditioning compressor A/C and the coolant pump WP in stationary air-conditioning mode. In normal operating mode, coupling K4 (and also coupling K2) is opened to be able to hold thesecond driving plane 2 at a standstill. The coupling K4 is formed as a controllable overrun coupling which in opened state allows a relative twist in both directions of rotation. Alternatively this can also be an electrically controllable magnetic coupling. - A fifth coupling K5 is arranged between the
first compressor wheel 10 and the compressor shaft 4 and is formed as an overrun coupling which allows an overrunning by the compressor shaft 4 in relation to thefirst compressor wheel 10 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation. In stationary air-conditioning mode, the overrun function of the coupling K5 prevents thefirst drive plane 1, which is then at a standstill, from being driven via the compressor shaft 4. - A sixth coupling K6 is arranged between the
second compressor wheel 11 and the compressor shaft 4 and is also formed as an overrun coupling. This allows an overrunning by the compressor shaft 4 in relation to thesecond compressor wheel 11 in the direction of rotation of the crankshaft CR, and blocks this in the opposite direction of rotation. In normal operating mode, the overrun function of coupling K6 prevents thesecond drive plane 2, which is then at a standstill, from being driven via the compressor shaft 4. - The rotational connection between the two
pump wheels - The traction drive allows the following operating modes:
- a) a starting mode in which the electric machine M operated as a motor drives the crankshaft CR from a standstill until the internal combustion engine starts:
-
- couplings K2 and K4 are closed;
- the crankshaft CR is driven by the electric machine M and itself drives the
first drive plane 1 via the coupling K1 and thefirst crankshaft wheel 2; - the translation ratios are selected with the respective diameter ratios between the
first wheels second wheels second drive plane 2; - the internal combustion engine starts and the electric motor M switches to generator mode, while couplings K2 and K4 are opened and the
second drive plane 2 comes to a standstill.
- b) a normal operating mode in which the electric machine M operated as a generator is driven by the crankshaft CR of the running internal combustion engine:
-
- couplings K2 and K4 are opened and the
second drive plane 2 is at a standstill; - the electric machine M, air-conditioning compressor A/C and coolant pump WP are driven via the
first drive plane 1 when couplings K3, K5 and K7 are in the blocking position.
- couplings K2 and K4 are opened and the
- c) a boost mode in which the electric machine M operated as a motor drives the crankshaft CR as support while the internal combustion engine is running:
-
- couplings K2 and K4 are closed such that the
second drive plane 2 increases its rotation speed from a standstill up to the momentary crankshaft rotation speed, with mechanically and acoustically acceptable acceleration; - the crankshaft CR driven by the combustion engine is also driven by the electric motor M via the
second drive plane 2.
- couplings K2 and K4 are closed such that the
- d) a stationary air-conditioning/heating mode in which the electric machine M operated as a motor drives the air-conditioning compressor A/C and/or the coolant pump WP when the internal combustion engine is stopped:
-
- the
first drive plane 1 is at a standstill; - coupling K2 is opened and coupling K4 is closed;
- couplings K4, K6 and K8 are in the clamped position and the
second machine wheel 9,second compressor wheel 11 andsecond pump wheel 13 are driven by the electric machine M; - to start the internal combustion engine from stationary air-conditioning mode, coupling K2 is closed such that the different rotation speeds of the (initially stopped)
first drive plane 1 andsecond drive plane 2 are synchronized with each other in a mechanically and acoustically acceptable manner. Also in regard to the rotation speed synchronization in boost mode, coupling K2 can for example have a spring mechanism which prevents a sudden torque build-up. Coupling K2 can alternatively or optionally also be a friction coupling, the friction partners of which are closed intermittently and/or by grinding to restrict the torque which can be transmitted.
- the
- e) List of Reference Numerals
- 1 First drive plane
- 2 Second drive plane
- 3 Machine shaft
- 4 Compressor shaft
- 5 Pump shaft
- 6 First crankshaft wheel
- 7 Second crankshaft wheel
- 8 First machine wheel
- 9 Second machine wheel
- 10 First compressor wheel
- 11 Second compressor wheel
- 12 First pump wheel
- 13 Second pump wheel
- 14 First traction means
- 15 Second traction means
- CR Crankshaft
- M Electric machine
- A/C Air-conditioning compressor
- WP Coolant pump
- K1-K8 Coupling
Claims (7)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011003225.8A DE102011003225B4 (en) | 2011-01-27 | 2011-01-27 | Traction drive of an internal combustion engine and method for its operation |
DE102011003225.8 | 2011-01-27 | ||
PCT/EP2011/068751 WO2012100849A1 (en) | 2011-01-27 | 2011-10-26 | Traction drive of an internal combustion engine and method for operating the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130296086A1 true US20130296086A1 (en) | 2013-11-07 |
Family
ID=44883241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/980,896 Abandoned US20130296086A1 (en) | 2011-01-27 | 2011-10-26 | Traction drive of an internal combustion engine and method for operating the same |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130296086A1 (en) |
CN (1) | CN103339411B (en) |
DE (1) | DE102011003225B4 (en) |
WO (1) | WO2012100849A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170314561A1 (en) * | 2016-04-29 | 2017-11-02 | Illinois Tool Works Inc. | Power systems and enclosures having an improved compressor drive |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102013011214B4 (en) * | 2013-07-04 | 2019-12-24 | Audi Ag | Feed pump arrangement of a drive device of a motor vehicle and method for operating a feed pump arrangement |
US20160108806A1 (en) * | 2014-10-15 | 2016-04-21 | The Gates Corporation | Two speed belt drive system |
DE102015208637B4 (en) * | 2015-05-11 | 2018-06-21 | Bayerische Motoren Werke Aktiengesellschaft | Drive device with an internal combustion engine |
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US2860519A (en) * | 1955-06-15 | 1958-11-18 | Cavanaugh Mildred | Dual drive ratio power transmission mechanism |
US20100065001A1 (en) * | 2007-03-20 | 2010-03-18 | Spicer Gary J | Starter and Accessory Drive System And Method For Hybrid Drive Vehicles |
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GB191217757A (en) * | 1912-07-31 | 1913-07-17 | Renold Hans Ltd | Improvements in and relating to Change Speed Gears. |
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US7798928B2 (en) * | 2004-03-24 | 2010-09-21 | The Gates Corporation | Dual ratio belt drive system |
DE102005017038A1 (en) * | 2005-04-13 | 2006-10-19 | Schaeffler Kg | Traction drive, in particular belt drive for ancillaries of an internal combustion engine |
DE102006016408B4 (en) | 2006-04-07 | 2007-11-22 | Audi Ag | Internal combustion engine for driving a motor vehicle |
FR2923420A1 (en) * | 2007-11-13 | 2009-05-15 | Renault Sas | Motor vehicle e.g. hybrid motor vehicle, has belt drive connecting shaft of engine to electric machine and comprising controlled disengageable pulley, and another belt drive comprising free wheeling pulley received on shaft of engine |
DE102009003784A1 (en) * | 2009-04-15 | 2010-10-21 | Contitech Antriebssysteme Gmbh | Belt-driven starter-generator drive |
CN102111037B (en) | 2009-12-29 | 2014-09-03 | 德昌电机(深圳)有限公司 | Motor |
DE102010054630B4 (en) | 2010-12-15 | 2019-03-21 | Schaeffler Technologies AG & Co. KG | An accessory drive of an internal combustion engine and method for its operation |
-
2011
- 2011-01-27 DE DE102011003225.8A patent/DE102011003225B4/en not_active Expired - Fee Related
- 2011-10-26 CN CN201180066026.0A patent/CN103339411B/en not_active Expired - Fee Related
- 2011-10-26 US US13/980,896 patent/US20130296086A1/en not_active Abandoned
- 2011-10-26 WO PCT/EP2011/068751 patent/WO2012100849A1/en active Application Filing
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US2860519A (en) * | 1955-06-15 | 1958-11-18 | Cavanaugh Mildred | Dual drive ratio power transmission mechanism |
US20100065001A1 (en) * | 2007-03-20 | 2010-03-18 | Spicer Gary J | Starter and Accessory Drive System And Method For Hybrid Drive Vehicles |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20170314561A1 (en) * | 2016-04-29 | 2017-11-02 | Illinois Tool Works Inc. | Power systems and enclosures having an improved compressor drive |
US11203968B2 (en) * | 2016-04-29 | 2021-12-21 | Illinois Tool Works Inc. | Power systems and enclosures having an improved compressor drive |
Also Published As
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WO2012100849A1 (en) | 2012-08-02 |
CN103339411B (en) | 2016-06-22 |
DE102011003225A1 (en) | 2012-08-02 |
DE102011003225B4 (en) | 2019-03-21 |
CN103339411A (en) | 2013-10-02 |
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